Thomas yapp



T. YAPP.

(No Model.)

GAN. No. 317,957. Patented May 12. 1885.

NA PETERS. Pholo-Lxmegraphur, wa-hingun, D. C.

Ilnrrn STATES PATENT trice.

THOMAS YAPP, or CLEVELAND, OHIO.

CAN.

SPECIFICATION forming part of Letters Patent No. 317,957, dated May 12, 1885.

Application med May 1,1884. (No model.)

To all whom it may concern:

Be itdrnewn that I, THOMAS YAPP, a citizen of the United States, residing at Cleveland, county of Cuyahoga, and State of Ohio, have invented certain new and useful Improvements in Gans; and I do hereby declare the following to be a description of the same, and of the manner of constructing and using the invention, in such full, clear, and concise and eX- act terms as to enable any person skilled in the art to which it appertains to construct and use the same, reference being had to the accompanying drawing, forming a part of the specication, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to the sealing up of the mouths of cans made of tin or other metal, and which are used for the storage of oils or other substances. Said invention is a screw device, by which the inconvenience and eX- pense and in some circumstances the danger Offa soldering process are obviated.

The drawing is a vertical sectional view of the cap as applied to the can-cover.

The cap consists of two parts, A and B, the latter fittingk over the former and the two screwed together, as I proceed to describe.

Part A is a metallic disk or plate so pressed as to be provided with the annular projecting nange d, which said iiange is impressed on its exterior surface withl a male screw. Said part A is cut out on its top to form the opening c, which opening may be larger or smaller, as is desired, and as the limits of the said top may permit. The lateral flange a is of sufiicient extent to lap upon a portion of the jecting outwardly through the mouth of the can provided in said cover.

Part B is an unperforated metallic disk or plate so pressed as to be provided with the projecting annular flange e, said flange impressed on its interior surface with a female screw, said screw fitting closely over the male screw impressed on flange d. Said part has the annular lateral iiange b, of sufficient eX- tent to lap upon portions of the cover C and continuously around the mouth of the can.

When part B is applied to part A and screwed home upon it by means of the reciprocating screw devices mentioned, flange b is brought down tightly upon portions of the cover C about the cans mouth, and so forms, in connection with the iiange a, a clamping device to clamp between said flanges said portions of the can-cover.

In practice the can is filled through opening c, and then part B is screwed over A. I may also use a gasket, soaked in melted rubber, between flange Z2 and the cover C. Also I am not confined to the annular shape of the flanges a and b, but they may be in'other shapes. For the emptying of the can, part B is simply unscrewed from A, and the cans mouth is open. Thus my Ldevice saves the can from mutilation and permits it to be filled and sealed repeatedly, which makes a great saving in cans.

I therefore claiml. In a can-sealing device, a cap consisting of two separate parts, A and B, one of said partsviz. A--bein g perforated, and 'the other of said parts-viz., B-being unperforated,the unperforated part covering the perforated part, said two parts connected together by a screw device impressed upon their respective surfaces, said parts having lateral matching anges a and b that lap together, said flanges being thus adapted to clamp between them portions of the can-cover that lie about the mouth of the can, substantially as set forth.

2. In a can-sealing device, the combination, with a can-cover, of a cap consisting of two parts, A and B, said parts fastened together by a screw device impressed upon 'their respective surfaces, said two parts havinglateral matching iianges a and b, one of said flangesviz., a--lapping upon the inner surface of the can-cover continuously about the mouth of the can, and the other of said anges-viz., b-lapping upon the outer surface of the cancover continuously about the mouth of the can, all for the purpose of clamping between IOO said flanges said portions of the can-cover, and for the purpose of making a tight joint,

substantially as set forth.

3. In a can-sealing device, the combination, with portions of the can-cover contiguous to the mouth of the can, of the two parts A and B, said parts having the hase flanges a and b, said iianges clamping between them the portions of the can-cover, O, aforesaid,

said part A being perforated and having the flange d, projecting outwardly through the mouth of the can, said ange impressed with a male screw on its exterior surface, part B being unperforated" and impressed on the interior surface of its flange e with a female' r 5 screw, said parts screwed to each other by means of said screw device, and for the purposes substantially set forth and described.

In testimony that I claim the foregoing to be lmy invention I have hereunto set my hand zo this 31st day ofMarch, A. D. 1884.

THOMAS YAPP.

Witnesses:

JOHN O. HUMPHREY, Trros. B. HALL. 

